1 static void 2 get_error(struct tcb *tcp, const bool check_errno) 3 { 4 /* 5 * The system call convention specifies that r2 contains the return 6 * value on success or a positive error number on failure. A flag 7 * indicating successful completion is written to r7; r7=0 indicates 8 * the system call success, r7=1 indicates an error. The positive 9 * errno value written in r2. 10 */ 11 if (nios2_regs.regs[7]) { 12 tcp->u_rval = -1; 13 tcp->u_error = nios2_regs.regs[2]; 14 } else { 15 tcp->u_rval = nios2_regs.regs[2]; 16 } 17 } 18
